Error: Account temporarily blocked from sending messages

This error, which may also appear as "Suspicious Activity," can interrupt your ability to send email. Learn why it happens, how to fix it, and how to prevent it in the future.

What causes the error?

Suspicious activity detected in your account

This can happen if you've sent a lot of messages in a short period of time or you've sent one message to a large number of contacts and can result in your Yahoo Mail account temporarily being blocked from sending emails. You'll still be able to access your account and receive incoming emails during this time.

If your sending habits don't follow the examples above, it's possible your account was hacked. Learn what settings to check, and how to correct them, in our help article about securing a hacked account.